For what are you allowed to use the loudspeaker system when driving in regular traffic?

You are allowed to use the loudspeaker system in a vehicle primarily for the transmission of traffic information and providing operational directions. This is crucial for communicating important messages that pertain to road safety and traffic management. Under German traffic regulations, using the loudspeaker for entertainment is not permitted as it can distract both the driver and other road users, potentially leading to dangerous situations. Thus, options 1 and 2 are aligned with legal requirements for maintaining safety and order on the roads.